Fujifilm Corporation

Shin Ozawa

Hideyuki Suzuki

Hiroshi Isojima

Toshihiko Yawata

Shinji Imai

Hiroaki Mochizuki

Tetsu Miyoshi

Daisuke Inoue

Takami Arakawa

Shinichi Nakai

Naoya Imamura

Maki Mifune

Yusuke Akasaki

Provided are a method of manufacturing a solid electrolyte sheet including: heating a preformed body that is obtained by performing pre-pressure-forming on inorganic solid electrolyte particles containing solid particles plastically deformable at 250° C. or lower at a specific temperature or on inorganic solid electrolyte particles containing solid particles that have a thermal decomposition temperature of 250° C. or lower and that are plastically deformable at 250° C. or lower at a specific temperature and then performing pre-pressure-forming at a specific temperature to form a solid electrolyte layer consisting of inorganic solid electrolyte particles, a method of manufacturing a negative electrode sheet for an all-solid state secondary battery, and a method of manufacturing an all-solid state secondary battery, which include the method of manufacturing a solid electrolyte sheet.

Solid electrolyte sheet, negative electrode sheet for all-solid state secondary battery, and method of manufacturing all-solid state secondary battery

Provided are a negative electrode composition including a sulfide-based inorganic solid electrolyte, a negative electrode active material containing a silicon atom or a tin atom, and a polymer, in which the polymer has substantially no adsorption capacity to the negative electrode active material and the sulfide-based inorganic solid electrolyte, a modulus of elasticity of the polymer measured in accordance with JIS K 7161 (2014) is 100 MPa or higher and 1000 MPa or lower, and in a case where a negative electrode active material layer is formed of the negative electrode composition, the polymer is contained in the negative electrode active material layer in a particle form, a negative electrode sheet for an all-solid state secondary battery, an all-solid state secondary battery, a method for manufacturing a negative electrode sheet for an all-solid state secondary battery, and a method for manufacturing an all-solid state secondary battery.

Negative electrode composition, negative electrode sheet for all-solid state secondary battery, all-solid state secondary battery, method for manufacturing negative electrode sheet for all-solid state secondary battery, and method for manufacturing all-solid state secondary battery

Provided are an electrode composition, an electrode sheet for an all-solid state secondary battery, an all-solid state secondary battery, and respective methods of manufacturing the electrode composition, the electrode sheet for an all-solid state secondary battery, and the all-solid state secondary battery. The electrode composition includes: an inorganic solid electrolyte; an active material; and a distributing component that binds to the inorganic solid electrolyte and the active material, in which one kind of the distributing component is a binder, an adsorption rate A of the binder to the active material and an adsorption rate B of the binder to the inorganic solid electrolyte satisfy the following Expressions I) and II), and a distribution rate of the distributing component to the active material in an electrode active material layer formed of the electrode composition exceeds 50%.Adsorption Rate≥20%  Expression I)Adsorption Rate>Adsorption Rate  Expression II)

Electrode composition, electrode sheet for all-solid state secondary battery, all-solid state secondary battery, and respective methods of manufacturing electrode composition, electrode sheet for all-solid state secondary battery, and all-solid state secondary battery

Provided are an electrode composition, an electrode sheet for an all-solid state secondary battery and an all-solid state secondary battery that are formed of the electrode composition, and respective methods of manufacturing the electrode composition, the electrode sheet for an all-solid state secondary battery, and the all-solid state secondary battery. The electrode composition includes: an inorganic solid electrolyte; an active material; and a distributing component that binds to the inorganic solid electrolyte and the active material, in which one kind of the distributing component is a binder, a polymer forming the binder includes a repeating unit having an amino group, a sulfanyl group, a hydroxy group, a carboxy group, or an anone group, and a distribution rate of the distributing component to the inorganic solid electrolyte in an electrode active material layer formed of the electrode composition exceeds 60%.

Provided are a solid electrolyte composition including a sulfide-based inorganic solid electrolyte and a plurality of kinds of alkane dispersion media, in which the plurality of kinds of alkane dispersion media include, with respect to a peak of each alkane dispersion medium obtained by measurement under specific conditions using a gas chromatography, two kinds of alkane dispersion media in which a difference in retention time between mutually adjacent peaks of dispersion media is more than 0 minutes and within 0.2 minutes, a solid electrolyte-containing sheet, an all-solid state secondary battery, and methods for manufacturing a solid electrolyte-containing sheet and an all-solid state secondary battery.

Solid electrolyte composition, solid electrolyte-containing sheet, all-solid state secondary battery, and methods for manufacturing solid electrolyte-containing sheet and all-solid state secondary battery

Provided are a method of manufacturing a solid electrolyte sheet including: a step of performing preforming on inorganic solid electrolyte particles containing solid particles plastically deformable at 250° C. or lower; and a step of performing shearing processing on one surface of the obtained preformed body, in which a solid electrolyte layer consisting of the inorganic solid electrolyte particles is formed, and a method of manufacturing a negative electrode sheet for an all-solid state secondary battery and an all-solid state secondary battery, which include the method of manufacturing a solid electrolyte sheet.

Method of manufacturing solid electrolyte sheet, method of manufacturing negative electrode sheet for all-solid state secondary battery, and method of manufacturing all-solid state secondary battery

Provided is a current collector with an easily adhesive layer including an easily adhesive layer that is provided on at least one surface of a current collector, in which the easily adhesive layer includes a polymer having a solubility of 1 g/100 g or higher in toluene at 25° C. Provided are also an electrode, an all-solid state secondary battery, an electronic apparatus, and an electric vehicle that include the current collector with an easily adhesive layer, and methods of manufacturing the current collector with an easily adhesive layer, the electrode, and the all-solid state secondary battery.

Current collector with adhesive layer, electrode, all-solid state secondary battery, electronic apparatus, electric vehicle, and methods of manufacturing current collector with adhesive layer, electrode, and all-solid state secondary battery

Provided is an all-solid state secondary battery comprising a laminate in which a positive electrode layer, a solid electrolyte layer, and a negative electrode layer are laminated in this order,

All-solid state secondary battery and method of manufacturing the same

A composition for forming an active material layer, including a sulfide-based solid electrolyte, an active material, a conductive auxiliary agent including a carbonaceous material, and a dispersion medium, in which the dispersion medium includes at least one ketone compound dispersion medium in which two aliphatic groups each having 4 or more carbon atoms are bonded to a carbonyl group; a method for manufacturing the composition for forming an active material layer; a method for manufacturing a solid electrolyte-containing sheet; and a method for manufacturing an all-solid state secondary battery.

Composition for forming active material layer and method for manufacturing the same, and methods for manufacturing electrode sheet for all-solid state secondary battery and all-solid state secondary battery

Provided are a solid electrolyte composition including an inorganic solid electrolyte and a dispersion medium (A), in which the dispersion medium (A) includes a ketone compound (A1), and at least one dispersant (A2) selected from a ketone compound (A2-1) having a chemical structure different from the ketone compound (A1) or a alcohol compound (A2-2) and a method of manufacturing the same, a solid electrolyte-containing sheet, an electrode sheet for an all-solid state secondary battery, and a method of manufacturing an all-solid state secondary battery.

Solid electrolyte composition and method of manufacturing the same, solid electrolyte-containing sheet, electrode sheet for all-solid state secondary battery, and method of manufacturing all-solid state secondary battery

Provided are an electrode sheet for an all-solid state secondary battery and an all-solid state secondary battery including the electrode sheet. The electrode sheet includes a current collector, a primer layer, and an electrode active material layer in this order,

Electrode sheet for all-solid state secondary battery and all-solid state secondary battery

Provided is a video audio system including electroacoustic conversion units which include an electroacoustic conversion film having a macromolecular composite piezoelectric body formed by dispersing piezoelectric body particles in a viscoelastic matrix formed of a macromolecular material that is viscoelastic at normal temperature and thin film electrodes respectively laminated on both surfaces of the macromolecular composite piezoelectric body, curve and support the electroacoustic conversion film, and use at least a part of the electroacoustic conversion film as vibration regions and a display device which is a screen or a video display device to which videos are projected, in which at least one of the electroacoustic conversion units is disposed on a rear surface opposite to a surface of the display device on which videos are displayed, the plurality of vibration regions is arranged on the entire rear surface of the display device, and location information of the vibration regions is included in sound data that are input to the electroacoustic conversion units.

Video audio system

Provided are a polymer composite piezoelectric body in which the conversion efficiency between electricity and sound is increased and thus the sound pressure level is improved, an electroacoustic transduction film, and an electroacoustic transducer. The polymer composite piezoelectric body includes a viscoelastic matrix formed of a polymer material having a cyanoethyl group, piezoelectric body particles which are dispersed in the viscoelastic matrix and have an average particle diameter of more than or equal to 2.5 &#x3bc;m, and dielectric particles dispersed in the viscoelastic matrix, in which the dielectric particles are formed of a material different from that of the piezoelectric body particles and have an average particle diameter of less than or equal to 0.5 &#x3bc;m and a relative permittivity of more than or equal to 80.

Polymer composite piezoelectric body, electroacoustic transduction film, and electroacoustic transducer

Provided are an electroacoustic transduction film and an electroacoustic transducer capable of reproducing a sound with a sufficient sound volume and preventing deterioration of appearance. The electroacoustic transduction film includes: a polymer composite piezoelectric body in which piezoelectric body particles are dispersed in a viscoelastic matrix formed of a polymer material having viscoelasticity at a normal temperature; a lower thin film electrode laminated on one principal surface of the polymer composite piezoelectric body; a lower protective layer laminated on the lower thin film electrode; an upper thin film electrode formed on the other principal surface of the polymer composite piezoelectric body; an upper protective layer laminated on the upper thin film electrode; and a colored layer laminated on at least one of a surface layer side of the upper thin film electrode and a surface layer side of the lower thin film electrode.

Electroacoustic transduction film and electroacoustic transducer

A readily adhesive sheet including a base material film and an olefin-based polymer layer which is disposed on at least one surface of the base material film and contains at least one binder, which is an olefin-based binder having an elastic modulus of 320 MPa or less, at least one coloring pigment selected from titanium oxide, carbon black, titanium black, black combined metal oxides, cyanine-based colors and quinacridone-based colors, and a crosslinking agent has a favorable adhesion to the sealing material even after aged in a hot and humid environment.

Growing community of inventors

Kanagawa, Japan

Shin Ozawa